6.
Julian: Thanks, ladies. Don't worry. It's taken care of. 
Serena: And, uh, it's been a lot of fun. It has. Uh, you know, all this talk about Bette Davis has... has really got me thinking about my character. You know, I think I could use some more coaching before the show. What do you say? 
Julian: Sure. Say 4:00? Text me your address.
Serena: Great.
Vanessa: So what are you up to? 
Serena: You mean what we are up to. I may not be a huge classic film buff, but I have read "Cyrano."

It's taken care of: Julian付完帐单后说了这句话，意思是单已经买好了
What do you say: 你说呢，你觉得如何？后面的那个say 4:00里的say是what about的意思，say还可以表示“比如”，用法跟for example一样。
what are you up to: 这里Vanessa的意思是“你想干嘛，你有什么预谋？”，在其他场合这句话可以当问候语来用，表示“近来如何，最近在忙什么呢”的意思。
buff: One who is enthusiastic and knowledgeable about a subject, film buff就是很对电影很有研究的人。
Cyrano: 电影Cyrano de Bergerac(大鼻子情圣)，讲述的是贵族青年Cyrano既是一个剑客又是一名诗人，暗恋着表妹，但由于他长着山一样的鼻子，自渐形秽。而表妹爱着他的朋友-英俊的Christian，Cyrano强忍心中的痛苦，为朋友代写情书，把心中的真情写入信中，成全了他们。直到Cyrano临终之前，才把真相告诉了表妹。Serena从电影里获得灵感，V通过蓝牙耳机听到S和Julian之间的对话，并教S如何应答。


Serena在电视里用的就是这款Jawbone蓝牙耳机，很漂亮的香槟粉红色。

7.
Blair: Do you know how hard it is to get revenge when your enemy is changing every five minutes?
Dorota: You need to calm nerves and warm vocal chord. You want tea?
Blair: No, I want Dan Humphrey's head on a platter.

on a platter: 用盘子端上来。这段对话超好玩，所以一定要摘录一下。

8.
Dan: I know you were just looking out for me. And Rachel... well, she, uh, she turned out to be not who I thought she was or at least not anymore.
Rufus: I'm sorry, too, son.

look out for: to feel responsibility for someone or something; watch out for somebody / something.

9.
Serena: B, I've been looking everywhere for you. I know that was Rachel that sent the "gossip girl" blast.

send the blast: 爆料，超常用的词。

10.
Blair: Spare me, Serena. I don't need a stirring speech telling me what a good person I am. I know I'm not. Yale kicking me out is the karma I've earned.

spare me: 饶了我吧，省省吧
stirring: stimulating
karma: 因果报应，512地震之后，莎朗斯通曾公开说“地震是中国人的报应”，当时她用的就是这个karma.